A BEM theory adaption for inclusion of hub ratio effects in HAWT rotor design and analysis

IF 1.5 Q4 ENERGY & FUELS

Wind Engineering Pub Date : 2023-04-13 DOI:10.1177/0309524X231166319

Howard Fawkes

引用次数: 0

Abstract

A large hub ratio in a horizontal axis wind turbine (HAWT) rotor can provide aerodynamic and structural design benefits, but the flow effects are not accounted for in the classical Blade Element Momentum Method (BEMM). Research into the effect of HAWT rotor hub ratio, necessitated development of an adaption to the BEMM, so that rotors with large hub ratios, could be designed to be aerodynamically efficient, and so that the flow effects could be included in performance prediction. Results from the BEMM with large-hub adaption were compared with results from using the classical BEMM and with results from CFD simulation. Two sets of rotors were analysed, one set in a viscous flow regime and the other in a turbulent flow regime. The BEMM with large-hub adaption, was found to provide rotor designs with better performance and provided a more accurate prediction of relative rotor power than the classical BEMM.

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将边界元法理论应用于HAWT转子设计与分析中，以纳入轮毂比效应

大轮毂比可以为水平轴风力机(HAWT)转子提供气动和结构设计上的好处，但传统的叶素动量法(BEMM)并未考虑其流动效应。为了研究HAWT转子轮毂比的影响，有必要开发一种适应BEMM的方法，以便设计出具有大轮毂比的转子，使其具有空气动力效率，并将流动效应纳入性能预测。将大轮毂自适应BEMM计算结果与经典BEMM计算结果和CFD模拟结果进行了比较。分析了两组转子，一组处于粘性流动状态，另一组处于湍流流动状态。结果表明，与传统BEMM相比，具有大轮毂适应性的BEMM能够提供更好的转子设计性能和更准确的转子相对功率预测。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Wind Engineering ENERGY & FUELS-

CiteScore

4.00

自引率

13.30%

发文量

期刊介绍： Having been in continuous publication since 1977, Wind Engineering is the oldest and most authoritative English language journal devoted entirely to the technology of wind energy. Under the direction of a distinguished editor and editorial board, Wind Engineering appears bimonthly with fully refereed contributions from active figures in the field, book notices, and summaries of the more interesting papers from other sources. Papers are published in Wind Engineering on: the aerodynamics of rotors and blades; machine subsystems and components; design; test programmes; power generation and transmission; measuring and recording techniques; installations and applications; and economic, environmental and legal aspects.